Data Persistence with Spring Data JPA — Java + Spring Boot Roadmap

Mapping Java objects to database tables and querying them idiomatically

Steps in Data Persistence with Spring Data JPA

JPA & Hibernate Fundamentals — intermediate · What an ORM does and how JPA/Hibernate map objects to relational tables
Entity Mapping & Annotations — intermediate · @Entity, @Id, @Column and mapping Java fields to table columns
Spring Data Repositories — intermediate · CrudRepository/JpaRepository and how method names become queries
Relationships (One-to-Many, Many-to-Many) — intermediate · Modeling associations between entities and managing cascade/fetch behavior
Query Methods & JPQL — intermediate · Derived query methods, @Query and JPQL for more complex queries
Transactions with @Transactional — advanced · Declarative transaction management and common pitfalls like self-invocation
Database Migrations with Flyway/Liquibase — advanced · Versioning schema changes so they roll out predictably across environments